You mean "fitting in a cabinet above the cooker that matches the wall cabinets?
I'd go for Elica.
here are some examples.
Contact them and ask for their glossy brochure (their website is terrible) there is a very wide range and you can compare air throughput and noise ratings. You will probably have it running at low speed most of the time and turn it up when cooking flambé, steaks or curries.
Will you be venting it through the wall directly behind the cooker, or will it need a duct to reach an outside wall?
How many cubic metres (length by breadth by height) is your kitchen or other area that the cooker will be in? Does it have a stove or fire with a working chimney? (gas, wood, coal or multifuel?)
I prefer one that is wider than the hob, to catch steam or fumes that drift sideways. This can also be achieved by constructing the cabinet so the bottom is higher than the sides and front, forming an inverted tray. Steam will rise into this and be sucked away.
As you will see from the technical drawings, the hole through the wall will be higher than the fan unit, because the vent comes out of the top and then needs an elbow.